// ClassicalSharp copyright 2014-2016 UnknownShadow200 | Licensed under MIT
using System;
using ClassicalSharp.Gui.Widgets;

namespace ClassicalSharp.Gui.Screens {
	public class GuiOptionsScreen : MenuOptionsScreen {
		
		public GuiOptionsScreen( Game game ) : base( game ) {
		}
		
		public override void Init() {
			base.Init();
			
			widgets = new Widget[] {
				// Column 1
				MakeBool( -1, -150, "Black text shadows", OptionsKey.BlackTextShadows,
				     OnWidgetClick, g => g.Drawer2D.BlackTextShadows,
				     (g, v) => { g.Drawer2D.BlackTextShadows = v; HandleFontChange(); } ),		
				
				MakeBool( -1, -100, "Show FPS", OptionsKey.ShowFPS,
				         OnWidgetClick, g => g.ShowFPS, (g, v) => g.ShowFPS = v ),
				
				MakeOpt( -1, -50, "Hotbar scale", OnWidgetClick,
				     g => g.HotbarScale.ToString( "F1" ),
				     (g, v) => { g.HotbarScale = Single.Parse( v );
				     	Options.Set( OptionsKey.HotbarScale, v );
				     	g.Gui.RefreshHud();
				     } ),
				
				MakeOpt( -1, 0, "Inventory scale", OnWidgetClick,
				     g => g.InventoryScale.ToString( "F1" ),
				     (g, v) => { g.InventoryScale = Single.Parse( v );
				     	Options.Set( OptionsKey.InventoryScale, v );
				     	g.Gui.RefreshHud();
				     } ),
				
				MakeBool( -1, 50, "Tab auto-complete", OptionsKey.TabAutocomplete, 
				         OnWidgetClick, g => g.TabAutocomplete, (g, v) => g.TabAutocomplete = v ),
				
				// Column 2				
				MakeBool( 1, -150, "Clickable chat", OptionsKey.ClickableChat,
				     OnWidgetClick, g => g.ClickableChat, (g, v) => g.ClickableChat = v ),
				
				MakeOpt( 1, -100, "Chat scale", OnWidgetClick,
				     g => g.ChatScale.ToString( "F1" ),
				     (g, v) => { g.ChatScale = Single.Parse( v );
				     	Options.Set( OptionsKey.ChatScale, v );
				     	g.Gui.RefreshHud();
				     } ),

				MakeOpt( 1, -50, "Chat lines", OnWidgetClick,
				     g => g.ChatLines.ToString(),
				     (g, v) => { g.ChatLines = Int32.Parse( v );
				     	Options.Set( OptionsKey.ChatLines, v );
				     	g.Gui.RefreshHud();
				     } ),
				
				MakeBool( 1, 0, "Use font", OptionsKey.ArialChatFont,
				     OnWidgetClick, g => !g.Drawer2D.UseBitmappedChat,
				     (g, v) => { g.Drawer2D.UseBitmappedChat = !v; HandleFontChange(); } ),
				
				MakeOpt( 1, 50, "Font", OnWidgetClick,
				     g => g.FontName,
				     (g, v) => { g.FontName = v;
				     	Options.Set( OptionsKey.FontName, v );
				     	HandleFontChange();
				     } ),
				
				MakeBack( false, titleFont,
				         (g, w) => g.Gui.SetNewScreen( new OptionsGroupScreen( g ) ) ),
				null, null,
			};			
			MakeValidators();
			MakeDescriptions();
		}
		
		void HandleFontChange() {
			int selIndex = Array.IndexOf<Widget>( widgets, selectedWidget );
			game.Events.RaiseChatFontChanged();
			base.Dispose();
			base.Init();
			game.Gui.RefreshHud();
			
			for( int i = 0; i < widgets.Length; i++) {
				if( widgets[i] == null || !(widgets[i] is ButtonWidget)) {
					widgets[i] = null; continue;
				}
				
				ButtonWidget btn = widgets[i] as ButtonWidget;
				btn.font = titleFont;
				btn.SetText( btn.Text );
			}
			
			if( selIndex >= 0 )
				selectedWidget = (ButtonWidget)widgets[selIndex];
		}
		
		void MakeValidators() {
			validators = new MenuInputValidator[] {
				new BooleanValidator(),
				new BooleanValidator(),
				new RealValidator( 0.25f, 4f ),
				new RealValidator( 0.25f, 4f ),
				new BooleanValidator(),
				
				new BooleanValidator(),
				new RealValidator( 0.25f, 4f ),
				new IntegerValidator( 0, 30 ),
				new BooleanValidator(),
				new StringValidator( 32 ),
			};
		}
		
		void MakeDescriptions() {
			descriptions = new string[widgets.Length][];
			descriptions[8] = new[] {
				"&eWhether a system font is used instead of default.png for drawing text",
				"&fThe default system font used is Arial.",
			};
		}
	}
}